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Finding the Fourth Proportional to 253,400.48, 349,699.92 and 140,233.76

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Solution

The fourth proportional to 253,400.48, 349,699.92 and 140,233.76 is: 193,526.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,400.48 : 349,699.92 = 140,233.76 : x
  2. Step 2: Convert to fraction form
    253,400.48/349,699.92 = 140,233.76/x
  3. Step 3: Cross multiply
    253,400.48x = 349,699.92 × 140,233.76
  4. Step 4: Simplify right side
    253,400.48x = 49,039,734,653.30
  5. Step 5: Solve for x
    x = 49,039,734,653.30/253,400.48
  6. Step 6: Final answer
    x = 193,526.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.